Phtheochroa fulviplicana
(Walsingham, 1879)
Phtheochroa fulviplicana is a small tortricid described by Walsingham in 1879. The exhibits a disjunct distribution across North America, with records from both eastern (Maine) and western (Alberta, Nevada, California) localities. Its period spans late spring through summer, with an additional December record suggesting possible multivoltinism or late-season in some . The species epithet 'fulviplicana' refers to tawny or yellowish-brown wing markings.
Pronunciation
How to pronounce Phtheochroa fulviplicana: //θiː.ɵʊˈkroʊ.ə fʊlˌvɪ.plɪˈkæ.nə//
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Identification
The combination of small size (14–23 mm wingspan), tawny-brown forewing pattern, and geographic distribution in North America distinguishes this from . Specific diagnostic features require examination of genitalia; superficially similar to other Phtheochroa species and small Cochylini tortricids.
Appearance
Wingspan 14–23 mm. Forewings with tawny-brown (fulvous) markings, consistent with the epithet. Wing pattern typical of Cochylini tribe members, with oblique transverse bands.
Distribution
North America: recorded from Maine (eastern United States), Alberta and Saskatchewan (western Canada), and Nevada and California (western United States). The disjunct distribution pattern suggests either widespread occurrence with sampling gaps or genuine range fragmentation.
Seasonality
recorded May through July, with additional December record. The December observation may indicate a partial second , adult activity, or anomalous .
Similar Taxa
- Other Phtheochroa speciesSimilar size and general tortricid ; genitalia examination typically required for definitive separation
- Small Cochylini tribe membersShared wing pattern elements and body form; requires careful comparison of pattern details and genitalia
More Details
Authorship
Originally described by Thomas de Grey, 5th Baron Walsingham in 1879, a prominent British entomologist who described numerous North American Lepidoptera.
Distribution gaps
The absence of records between eastern (Maine) and western (Alberta–California) suggests either undersampling of intervening regions or genuine biogeographic disjunction.